| MODEL | YAMAHA IT 465 1981 |
| Year | 1981 |
| Engine Type | Two stroke, single cylinder, reed valve |
| Displacement / Capacity | 465 cc / 28.3 cu in |
| Bore X Stroke | 85 x 82 mm |
| Compression Ratio | 7.1:1 |
| Cooling System | Air cooled |
| Max Power | — |
| Max Torque | — |
| Ignition | CDI |
| Induction | 38 mm Mikuni carburettor |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 Speed |
| Clutch | Wet, multi-plate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Single downtube, full cradle chrome-moly frame with box-section aluminium swing arm |
| Front Suspension | Telescopic forks, 267 mm / 10.5 in travel |
| Rear Suspension | Monoshock, adjustable spring preload and rebound damping, 272 mm / 10.7 in travel |
| Front Brakes | Drum |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 939 mm / 36.9 in |
| Wheelbase | 1475 mm / 58.1 in |
| Ground Clearance | 311 mm / 12.3 in |
| Dry Weight | — |
| Wet Weight | 123.2 kg / 271.5 lbs |
| WHEEL SPECS | |
| Front Tyre | 3.00 x 21 |
| Rear Tyre | 5.60 x 17 |
| FUEL SYSTEM | |
| Fuel Capacity | 13 Litres / 3.4 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The 1981 IT 465 was the largest of the air-cooled IT singles, with a long-stroke 465 cc engine in a chrome-moly frame and an aluminium swingarm. It had the tallest, longest-travel chassis of the range at that point.
